public async Task GetPublisherByIdAsync_WithCorrectId_WorksCorrectly()
{
// Arrange
var context = this.NewInMemoryDatabase();
var expectedPublisher = new Publisher
{
Name = "Publisher1"
};
await context.Publishers.AddRangeAsync(
expectedPublisher,
new Publisher
{
Name = "Publisher2"
}
);
await context.SaveChangesAsync();
var publishersService = new PublishersService(context);
// Act
var actualPublisher = await publishersService
.GetPublisherByIdAsync <PublisherDetailsServiceModel>(expectedPublisher.Id);
// Assert
Assert.NotNull(actualPublisher);
Assert.Equal(expectedPublisher.Id, actualPublisher.Id);
}
public async Task GetPublisherByIdAsync_WithNonexistentId_ReturnsNull()
{
// Arrange
var context = this.NewInMemoryDatabase();
var id = Guid.NewGuid().ToString();
await context.Publishers.AddAsync(new Publisher { Name = "Publisher1" });
await context.SaveChangesAsync();
var publishersService = new PublishersService(context);
// Act
var actualPublisher = await publishersService.GetPublisherByIdAsync <PublisherDetailsServiceModel>(id);
// Assert
Assert.Null(actualPublisher);
}